Water-tube boiler.



H. F, BASGOM.

WATER TUBE BOILER.

APPLICATION TILED JAN. 6, 1911.

Patented Aug. 13,1912.

2 SHEETS-SHBET 1.

Witnesses Inventor Attorneys H. F. BASCOM.

WATER TUBE BOILER.

APPLICATION IILED JAN. 6, 1911.

1,035,677, Patented Aug. 13,1912.

2 BHEETSBHEET 2.

1 Inventor fliZZI/Wl Wit esses Attorneys UNITED STATES PATENT OFFICE.

HARRY I. BASCOM, OF'4LLEN'1OWN, PENNBYLVAN IA.

WATER-TUBE BOILER .To all whom it may concern.

Be it known that I, HARRY F. BASCOM, a citizen of the United States,residing at Allentown, in the county of Leh1 h and State ofPennsylvania, have invente a new and useful Water-Tube Boiler, of whichthe followin is a specification.

It is t e object of this invent-ion to provide a means whereby accessmay be had to a boiler structure, for the purpose of cleaning the tubesand the drums thereof, without interfering with the circulation ofproducts of combustion about the tubes and the drums.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that chan es in the preciseembodiment of invention erein disclosed can be made within the scope ofwhat is claimed without departing from the spirit of the invention.

In the drawings,Figure 1 is a front elevation of a fragment of an endwall of a boiler, equipped with the device of my invention; Fig. 2 is arear elevation of a fragment of an end wall of a boiler structure,equipped with the device of my invention, the mud drum being shown insection, and the partition which is above the mud drum being sectionedalso, the artition being broken away at its lower e ge, in order todisclose a removable plate which constitutes a portion of the invention.Fi 3 shows the invention in perspective, an Fig. 4 is a vertical sectiontransversely of the end wall of the boiler, the view showing the mannerin which the invention is mounted, and how the invention cooperates withthe partition and the drum of the boiler.

The device forming the subject matter of this application, is adapted tobe employed in connection with boilers of widely difi'erent types, but,in order to present a concrete embodiment, 'I- have ap. lied the deviceto one particular type of oiler, namely, the Sterling boiler, so called,without, of course, limiting the use of the invention to this particularform of boiler.

The particular boiler undr consideration, consists of a plurality ofupper drums (not shown) united by means of tubes 1 and 2, with .a lowerdrum 3, known as the muddrum. The end wall of the inclosingstrucflpeclfloatton of hotter: Patent.

Application Med January 6, 1911. Serial No. 801,155

Patented Aug. 13, 1912.

ture for the boiler, is denote by the numeral 4, and in lateral abutmentwith the end Wall 4, is an upright partition 5, and this partition, asclearly shown in Fi 4 extends downwardly into abutment with the drum 3.

Referring to Fig. 2, and noting the arrows therein, it will beunderstood that the products of combustion, in this articular type ofboiler, move transversely of the boiler structure, about the tubes 2,into contact with the partition 5, the products of combustion passingthence, over the top of the partition 5, and downwardly along theopposite side of the partition, about the tubes 1.

By way of explanation I will state that in boilers generally, and in thetype of boiler shown, 1n particular, the efficiency of the boiler isdecreased, by reason of the fact that dust and other foreign matteraccumulates about the tubes 1 and 2 in the vicinity of the drums,particularly in the vicinity of the lower mud-drum 3. This inventionaims to provide means whereby access may be had readily to a boilerdrum, and to the tubes of the boiler, for the purpose of cleanin same,the device, however, normally interfering in no wise with thecirculation of products of combustion about the drums and the tubes. Incarrying out the invention, then, an opening is fashioned in the endwall 4 of the boiler structure, above the drum 3. Into this opening isinserted a box-like casing 6, open at its forward and rear ends. Thearticular form given to this casing, may e varied, but the specificcasing shown most clearly in Fig. 3, will be found convenient to use,and inexpensive to manufacture. In its forward edge, the casing 6 issupplied with a plurality of outstanding lugs 7, adapted to extendthrough a closure 8. Wing nuts 9, or other securin elements adapted to alike end, are mounte upon the lugs 7, to hold the closure in place. Atany convenient point in the closure 8, there is an opening 10 (see Fig.4) this opening being normally closed by means of a door 11 which, ifdesired, may be pivoted in its uppermost portion to the closure 8, asshown at 12. One of the lugs which outstands from the forward edge ofthe casing 6, in the present instance, the lug denoted specifically bythe numeral 14, carries tail-nut 15, adapted to engage the door 11 tohold the same in closed position.

Extended longitudinally of the casing 6,

RBI SUED the upon its top, is a reinforcing'flange 16, the

the tubes 1 and 2 is desired, the door 11 maybe opened. If a thoroughcleaning of the tubes and the drum is found to be necessary, the wingnuts 9 may be removed, permitting the closure 8 to be set aside,whereupon the plate 18 may be withdrawn from the guides 17, thus givingeasy access to the tubes and the d rum.

The plate 18, when mounted in the guides 17, abuts against the forwardend of the partition 5. The reason why the plate 18 is provided, will beclearly understood from an inspection of Figs. 2 and 3.

Noting, at present, Fig. 3, it will be seen that,;in the absence of theplate 18, the products of combustion, following the arrows in Fig. 3,

would pass intothe casing 6, laterally around the forward edge of thepartition.

5, thus putting an end to the circulation upon the opposite sides of thepartition, 5, as shown by the arrows in Fig. 2. When the plate is interminal abutment with the partition 5, as shown in Fig. 4, it will beseen that the closure 8 serves as a means for holding the plate 18 inplace. Obviously, the removal of the plate 18' permits the operator toexamine and to clean the tubes which are located upon opposite sides ofthe partition 5.

Although, in Fig. 4, the casing 6 is shown as not-extending entirelythrough the end wall 1, and although in Fig. 3, the plate 18 protrudesinwardly beyond the casing 6, it will be readily understood that thesedetails may be altered, so that the casing 6, the plate 18, the end wall4, and the partition 5, will all cooperate to give the desired access tothe tubes and the drum, without interfering with the circulation of theproducts of combustion through the ture.

boiler strucoa er? It is to ,be noted, that the improvement hereindisclosed, isadapted not only for the purposes of cleaning the drums andthe tubes, but, as well, for determining, by inspection, whether any ofthe tubes are leaking or broken. p

Having thus described the invention, what is claimed is 1. In a deviceof the class described, an.

end Wall having an opening; a partition extended across the opening andabutting against the Wall;.an imperforate plate removably held in theopenin longitudinally of the, opening andinterme iate the sides of theopening, the plate abutting-against the partition to prevent a {crossdraft through the opening; and a closure for the outer end of theopening, with which closure the plate engages.

2. In a device of the class described, an

drum and having an opening; a partition in abutmentwith the end wall andthe drum; a casing adapted to be inserted into the opening in the endwall, the opening and the casing being extended beyond both sides of thepartition; a plate insertible into the casing, to abut against thepartition and to prevent acrossdraftthrough the opening; and a removableclosure for the easing, serving at once to give access to the casing,andasa means for holding the plate in abutment with the partition.

In-testimony that I claim the foregoing as my own, I have hereto afixedmy signature in the presence ,of two witnesses.

HARRY r. BASCOM.

Witnesses:

' M RK BERNARD,

B. CARRAWAY.

